Platform & DevOps·The orchestrator's model of the world
the pod died, came back on another node, and the data was still there because the disk followed it.
Persistent volume
Also calledpersistent volume claim, attached storage, PVC
Storage whose lifetime is independent of any pod, requested by a claim and attached wherever the workload is scheduled. It is what makes a stateful workload survivable, and it drags real constraints in with it: most block storage attaches to one node at a time and lives in one availability zone, which silently pins the workload to that zone. Reclaim behaviour is the other trap — a claim deleted with the wrong policy takes the data with it.